seer-cli 0.52.3

//! Bordered block with the title embedded in the top border (┤ title ├), an
//! accent color, and a focus highlight — emulating ratatui's titled Block.
use ratatui::layout::Rect;
use ratatui::style::{Color, Style};
use ratatui::text::{Line, Span};
use ratatui::widgets::{Block, BorderType, Borders};
use ratatui::Frame;
use seer_core::output::sanitize_line;

use crate::tui::theme::Theme;

/// Build a titled, accent-bordered Block. `focused` brightens the border.
/// Titles often name remote data (a WHOIS server, a subdomain source), so
/// they are sanitized here.
fn block<'a>(theme: &Theme, title: &str, accent: Color, focused: bool) -> Block<'a> {
    let border_color = if focused { accent } else { theme.surface1 };
    Block::default()
        .borders(Borders::ALL)
        .border_type(BorderType::Rounded)
        .border_style(Style::default().fg(border_color))
        .title(Line::from(vec![
            Span::styled("┤ ", Style::default().fg(theme.surface2)),
            Span::styled(sanitize_line(title), Style::default().fg(accent)),
            Span::styled(" ├", Style::default().fg(theme.surface2)),
        ]))
}

/// Draw a [`block`] over `area` and return the inner area for its content.
pub fn render(
    f: &mut Frame,
    area: Rect,
    theme: &Theme,
    title: &str,
    accent: Color,
    focused: bool,
) -> Rect {
    let block = block(theme, title, accent, focused);
    let inner = block.inner(area);
    f.render_widget(block, area);
    inner
}

#[cfg(test)]
mod tests {
    use super::*;
    use crate::tui::test_util::render_text;
    use ratatui::widgets::Paragraph;

    #[test]
    fn panel_renders_title_in_border() {
        let theme = Theme::frappe();
        let text = render_text(24, 4, |f| {
            let b = block(&theme, "Registration", theme.blue, true);
            f.render_widget(Paragraph::new("body").block(b), f.area());
        });
        assert!(text.contains("Registration"));
        assert!(text.contains('╭') || text.contains('┌'));
    }
}